Flue construction for vehicles.



HLLEMP. FLUE CONSTRUCTION FOR VEHICLES.

APPLICATION FILED JULY 27, 1901.

PATENTED JULY 9, 1907.

2 SHEETS-SHEET 1.

witnesses:

I Inventor. 'Hermann Lamp W IO I r v I I2 No. 859,568. PATE NTED JULY 9,1907.

H. LEMP.

PLUE CONSTRUCTION TOR VEHICLES. APPLICATION FILED JULY 27, 1901.

ZSHEETS-EHHIET 2. I

witnesses:

Inventor-f, 'Hemann Lemp,

with a down or forced draft, operate very satisfactorily.

UNITED STATES; PATENT OFFICE.

HERMANN LEMP, OF LYNN, MASSACHUSETTS, ASSIGNOR TO GENERAL ELECTRICCOMPANY, I

or NEW YORK- FLUE CONSTRUCTION r03 VEHICLES.

To all whom it may concern.

Be it known that I, HERMANN LEMP, a citizen of the United States,residing at Lynn, county of Essex, Slate of Massachusetts, have inventedcertain new and 5 useful Improvements in FlueConstruction for Vehicles,of which the followingisaspecification. I

I have discovered inconnection with Vaporizers fob vehicles,particularly where liquid fuel is employed, that an up or natural draftwhen properly combined There is, however, one objection to such anarrange ment. Assuming that there is a relatively high wind, and thevehicle has been in operation long enough to' have all of the parts hot.If before the-fire can be materially checked the vehicle is stopped orcaused to move slowly, the wind will blow into the'down flue in such amanner that the flames will be. driven or spread outwardly, frequentlyresulting in setting lire to the woodwork ot' the carriage. Manyaccidents to carriages l have occurred which have beenicaused in thismanner.

In event otthe use of gasolene or other highly inflammable fuel,' itsometimes happens that the operator ismo re or less burned beibre he orshe can jump out of the vehicle. I overcome the objection above pointedoutby utilizing a cross or transverse flue which is so connected anddisposed with respect to the main line that wind cannot blow directlydown the latter. A further advantage of my improved construction lies inthe fact that the waste products of ((-mlb'UStlOIl are conveyed to thesides of the. vehicle, and there allowed to eseape, tlmsreducing. theliability of damagingthe canopy of the vehicle in case it is down. Thisalso tends to prevent the. gases from annoying the occupants of thevehicle. i

I in the" accompanying drawings which illustrate an embodiment of myinventionyl igurel, is afperspective view of a vehicle body showing'thevaporizer in place. Fig. 2, is a perspective view oi a part of the.vehicle body showing the cover for the inclosing case raised to permitinspection of the boiler. Fig. 3, is a perspective view 01" the boiler,and Fig. 4 is a vertical section thereof with the cross-flue in positionto receivethe productions of combustion. l

I 1, represents the vehicle body which is extended rearwardly as at 2,to form an inclosing box or casing for the steam generator 3. Thecasiug2, is provided with ahinged cover 4-, which may be raised or lowered atwill to inspect the boiler.

Specification of Letters Patent. Applicationfiied July 27, 1901.

For convenience of illustration, as representing one type of boiler andburner I have shown a flash boiler anda kerosene burner, but myinvention is not to be construed as being limited to the use of anyparticular kind of boiler-or burner or combination thereof. The boilerproper consists of a pipe 5, .which is bent into any convenient shape,and is inclosed by a'suitable v Patented July 9, 1907'. Serial No.69,904. I

easing 6. Between the layers or grids of pipe spaces are formed whichact as flues for the fire gases. Below the boiler tubes, which aresupportedin anysuitable manner, is located a cylindrical body offire-brick 7. This forms a part of the fire-chamber and surrounds theburner, which burner, in. the present instance, consists of a nozzle 8,baffling plate 9, and a vaporizer 10. The necessary air to supportcombustion enters by means of the holes 11, which are located near thecor ners of the casing 6. The air in passing downward, around thecylindrical-fire-brick lining 7; becomes more or less heated therebyadding to the economy of the system. The bottom of the boiler casing isclosed by the plate 12, and is provided With a small door 13-, throughwhichan igniter may be inserted or the burner inspected. Extendingacross the top of the .boiler casing is a plate or-partition 14-;this'partition is provided with an opening 15, through which the firegases, indicated by the arrows, are free to pass. .In the upper end ofthecasing between the partition and the top is formed a chamber 16,which chamber isprovided at the rear with a short upwardly extendingflue .17, and.

this in turn engages with the'flue-18, carried by'the cover 4, of thevehicle body. The chamber also opens into the down flueas will appearhereinafter. 1 may dispense with the partition 14 and permit the iregases I to pass directly out the up and down flues the action oi thecross flue being the same in both cases. In using the word chamber I donot mean to restrict myself to the structure-shown wherein a portion ofthe casing is actually divided off, but use it in a broader sense asmeaning a space wherein the lire gases mingle more or less freelybeforepassing through the flues.

The flue 18, may be secured to the cover in any suitable manner, and isprovided with an open ended cross l .or transverse flue 20, consistingof twosubstantially horizontal divergent branches, each branch in thepresent instance is shown as being semi-circular in outline,

but any other form may be substituted if desired. The flue 20 extendstransversely of the vehicle body and terminates at'or near the sidewalls thereof. The fine 17, is rectangular-in outline as will readily beseen in Fig. 3, and the flue 18, is of corresponding shape and justenough larger so that the cover 4, may. easily be I raised, as isillustrated in Fig.2. The cross flue20, is 1-00 made somewhat longerthan the flues 1 7 and 18 so that no opportunity will be afforded for agust of wind to blow down through the flues 18 and 17 and flues betweenthe boiler tubes into the fire chamber and cause the flames to be forcedoutward through the air admitting openings 11, or through anyptheropening or openings in the boiler casing which are made intentionally orotherwise. By making the cross flue 20, somewhat longerthan the flue 18,the waste products of combus: tion are carried to the'sidespf thevehicle, so'that they I10 will not annoy the occupants either when thevehicle is standing still or moving slowly. It also prevents the Thechamber 16, formed the upper end of the boiler easing besides openingupward is provided with an opening 21, which commuhicates with avertically extending flue 22, that creates the down or forced draft whenthe vehicle is in operation. This flue'is preferably made of sheet metaland is secured to the side of the boiler casing G, as is indicated inFig. 3. The fine is closed at its upper end 23 but is open at the lowerend, as is indicated in Fig, 4. Passing through the chamber 16, is theexhaust pipe 24, from the engine, which is turned downwardly, as isind'icatcd'indotted lines, at the point where it enters the flue 22. iissoon as the vehicle is started into operation, and exhaust steam passesthrough the exhaust pipe and'into the down fine, the

' draft is materially increased and the waste products of combusti m,instead of passing out through the vertical -fiues17 and 18, and throughthe cross fine '20, pass out through the downwardly extendirig fine 22and are pro jected toward the rdadbed. The length oi the line 22, andalso that of the cross fine 20, can be yaried to suit the vehicle towhich the apparatus is applied. By I mountinglthe cross flue 20, on thecover 4, of the vehicle-body, a very convenient arrangement is providedwhereby the boiler and the other parts of the vehiclemaybe inspected. Itwill be seen that the parts are so arranged that the wind cannot blowdirectly down through the vertical fines-18 and 17, into the chamber 16,thence to' the fire-box, neithercan any waste prodnets of combustionpass throughthe fines and strike the vehicle canopy, in-case such acanopy is used, for they wiil be deflected across to theside oi thevehicle.

fWhat' I claim as new and desire to secure by Letters Patent of'theUnited States, is, v

1. in combination. a boiler, a burner, a casingtherefor, a cit-imberformed in one end'of the casin a line opening downward out of thechamber from one point, a second flue. opening upward out of saidchamber from another point, and an open ended cross flue which engageswith the upper end of the upwardly extending line for carrying oif thewaste products of combustion.

.2. In combination with a steam generator, :1 burner. a casing thereforhaving a chamber above the generator, :1 flue communicating with thechamber and thro gh which" steam and tire gases from the chamber passunder ordinary running conditions, a second line communicating with thechamber independently of the first and throughwhich the fire gases passwhen the generator is being started into operation, and a transverselyextending flue which'ls connected to the last mentioned tine to prcventdralls of air from spreading the burner liame.

."i. in combination, a vehicle body provided with an opening. a boilerlocaiedwithin the body. a ilue for the boiler which communica i'cs withthe opening in the vehicle body, a transversely extending line whichcommunicaics with said opening and receives lire gases from said line,and'a third flue whiclrcxlcnds downwardly below the \cilicid body and isarranged at. its upper end to re ccive iil'e gases indepemlentiy of thefirst mentioned flue and dir-zchnrgc them below the-body. v I

4.-'lhe combination of a boiler, u casingya line for creating an updraft. :1 connectionbetween the crilulust port of the engine and iheraising, a second or transverse tine connected with the first, and athird or down flue which communicates with the casing independently ofthe first flue. I

5. In combination, a vehicle body, a boiler inclosed by .t the body, anupwardly opening flue, a co ver for the bodyof the vehicle which coversthe top of the boiler, a flue mounted on the cover which engages withthe opening in the boiler. and a transversely extending fine which isalso carried by the cover and is in free communication with the flueopening.

G. in a vehicle, the combination of a body having a rear 'ardlyextending portion which incloses the boiler, a cover for said portion, aboiler, a casing for the boiler containing upwardly and downwardlyopening tines, and a the said cover and is so arranged that it is incommunicatlonwith the upwardly opening flue.

7. in combination, a boiler, a casing therefor having a chamber abovethe boiler, aburner, an upwardly extending flue which opens upward fromthe casing, a transversely extending riine arranged to engage with thefirst line. and a third flue which has an opening'at its lower end andcommunicates at its upper end with the casing at a point above theboiler and independently of the first mentioned fine.

In a vehicle, the combination of a body, a boiler, a burner. a cover onthe bodydocated above the boiler, and

a line which is mounted on the cover for carrying off the lire gases. 4

i). in a vehicle, the combination of a body, a boiler, a.

burner. a cover on the body, a vertically extending fine mounted on thecover and arranged to carry off the tire gases. and a transverse fluewhich opens into thetlrst and is also carried by the cover. i

"10. The combination with a carriage body. of a steamboller carriedthereby and having a burner for heating it, and a flue for disposing ofthe products ot combustion from the burner, said flue havingsubstantially-horiaontal divergent:branches locntedexterior tothecarriage body. which are provided with outlets to the atmosphere and arearranged on either side of thatpertion of the fiue 'which is locatedwithin the carriage body and connects with the -fines orheating-passages of the boiler. said branches together forming atliroughms'sage for disposing of. atmospheric currents which mightotherwise re-' verse the normal draft of the burncr.

11. The combination with a carriage-bodynnd a cover therefor, of asteam-boiler carried by the'body and located below the cover, it burnerfor heating'it, and a line for dis posing of the'products of combustionfrom the burner, said line having substantially-horizontal divergentbranches extending transversely of and over the carriage-body cover andterminating in Outlets to the atmosphere which coin" cide substantiallywith the planes of theside walls of the carriage-body. said branchesbeing arranged on either side of that portion of the flue which connectswith the lines or heating-passages of the boiler, and together forming athrouglnp: sage for disposing of atmospheric currents which mightotherwise reverse the normal, dr:|ft,of the burner. j v

12. The combination of:\ vehicle body. a seal. a boilor withiniheboduwhich is located below thc'l ovel oi the seat. a tine extending fromthe boiler from a point in' tcrior to a pointexterioinio the body. and ahorizontal line located exterior to the body which is open al both endsand connected at an intermedialepoint to ilielirstmentioned ilue sothatthe lire gases can pass oil from either or both ol thcopen ends.

in witness whereof I have hereunto schmy hand this 23rd day of July,1901.

imniuxx LI-liil.

Witnesses lnoALn McKa Mclirnnor, v John J. WALKER.

. transversely extending line which is mounted on and over

